Introduction to Ontology Concepts and Modeling

What is ontology? An ontology is a formal system for modeling concepts and their relationships. Unlike relational database systems, which are essentially interconnected tables, ontologies put a premium on the relationships between concepts by storing the information in a graph database, or triplestore. (The following examples use data derived from PLOS, which makes all of its Open Access data and content available.) Relational databases are good at representing tabular data for one-to-one relationships: However, real-life data is seldom this tidy;

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Taxonomies: Connecting Users to Content

Taxonomies may be thought of as hierarchies of categories to group and organize information to be found when browsing, or as a structured set of terms used to tag content so that it can be retrieved efficiently and accurately. Sometimes the same taxonomy may serve both purposes, and sometimes two different taxonomies are used, one for each purpose, for the same content or site. Taxonomies are not new, in fact  there has been a lot written about them, including an

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